crtjtchfield



@uitrit-gitane stmt @fitta IMPROVEMENT IN FORCE PUMPS.

W. G. 'ORUTOHFIELR OF DAYTON, O]5II0,I ASSIGNOR TO HIMSELF ANDA JAMES O. ATLIOK. Lam Patent No. 60,146, @lated Member 4, 1866.

SPECIFICATION.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, W. G. CRU'TCHFIELD, of Dayton, in the county of Montgomery, and State oi:` Ohio, have invented certain new and useful improvements in Force Pumps; and I do hereby declare that the vfollowing is a full, clear, and exact description of the same, reference being had tothe accompanying drawingaand to the letters of 'reference marked thereon.

In the annexed drawing, A represents the stem of an ordinary force pump, in which plays the piston-rod B. C represents a pipe, which -connects with the stem A at one end, the other end turning up, and being prolvded with a cup E. The pipe C is also provided with a stop-cock D. The pipe G enters'thestem Abelow where the packing around thepiston-rod is placed. The object of the pipe C, .with its cock, and vessel, or cixp, is to allow the escape of steam or air, or any gaseous vapor, from the stem A without ha'ving `it cut its wayby. the piston- -rod through the packing. Water is placed in the cup. E, and when the pump is in operation forcing hot water,

all steam, Snc., is allowed to escape throngh the pipe C. This cup, E has its mouthturned up, so Vas to contain water or condensed steam. As the piston-rod or plunger passes down into the stem, the water, steam,

&c., which escapes by it between it and the stem, passes up into the cup, andwhen the piston-rod is raised,

again, the water from the cup runs down into the stem,vto be forced through the valves of the pump. At each downward stroke of the piston-rod the wastage from below escapes into the cup, thus making a waste and supply valve'of said cup. i

Having thnsfully described my invention, what I claim as new, anddesire to secure hy Letters Patent, iss---l` The arrangement, with the stem A of a force pump, of the pipe C with its cock and cup, substantially as` and for the purpose specied. v

As evidence that I claim the fgi'egoing, I have hereunto set my hand in the presence of two witnesses. l W. G. CRUTCHFIELD.

Witnesses:

JAMES TURNER, A. E. McCLUne. 

